Machine foe sanding molds foe beiok



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J. A.'BUOK.

MACHINE FOR SANDING MOLDS FOR BRICK. No. 284,115. Patented Aug. 28, 1883.

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UNITED STATES PATENT OrricE.

JAMES A. BUCK, OF CRESCENT, NEW' YORK, ASSIGNOR OF ONE-HALF TO ANDRENV O. NEWVTON AND SYLVESTER NE\VTON, BOTH OF SAME PLACE, AND ALBERT H. NEWTON, OF OOI-IOES, NEW YORK.

MACHINE FOR SANDING MOLDS FOR BRICK.

SPECIFICATION forming part of Letters Patent No. 24,115, dated August 28, 1883.

Application filed April 525, 1883.

To all whom it may concern:

Be it known that I, JAMES A. BUCK, of Crescent, in the county of Saratoga and State of New York, have invented a new and Im- 5 proved Machine for Sanding Molds for Brick,

of which the following is a specification.

, My invention relates to a new and improved machine for sanding molds for brick, in which a rotary sanding-cylinder having a chamber for holding sand and a series of two or more mold-receiving openings provided in its periphery operates to receive the mold to be sanded, and hold said molds in such a relation to each other that when one or more of said '15 molds are down below the plane of center of rotation of the cylinder and receiving the sand one or more other molds will be carried upward above the said plane of center of rotation and be emptied of sand, and be in 0011- venient situation for ready removal and replacement, and also in which an elastic supporting-bed, supported wholly from the frame of the machine, operates in conjunction with the said sanding machine to automatically 2 5 hold the molds in place in the mold-receiving openings made in the periphery of said cylinder.

My invention consists in certain features of construction hereinafter described, and s'pecifically set forth in the claims.

This application is a division of another ap plication filed by me October 9, 1882, serial No. 73,855, in which I claim-subject-matter not claimed herein. 7

Referring to the drawings, Figure 1 represents an end elevation of a brick-mold-sanding machine containing my improvements. Fig. 2 is a cross-sectional view of the same. Fig. 3 is a plan view'from above, and Fig. 4 0 is a front side elevation.

In the drawings, A A represent the framework of the machine, which frame-work may be made ofwood or iron, or both combined, as may be preferred. Supported in bearings a a, fixed to this frame, is a revolving shaft, B.

Mounted on shaft B, and secured thereto so as to revolve with it, is the sanding-cylinder 0, designed to contain the sand to be applied (No model.)

to the interior of removable molds M. This sanding-cylinder is made in the form of a box or cylinder, and is preferably made rectangular in form; though it may be made cylindrical, if preferred, and consists of end heads, I) b, and staves c c, securely united together by bolts, rivets, or screws, as may be preferred. It is made with a length from head to head (inside measure) equal to the length of removable mold M, intended to be sanded,while its diameter may be varied, according as the capacity of the box or cylinder for holding molds may require. Made in the periphery of this sanding cylinder or box are mold-receiving open ings D D, which openings are each made with a width equal to the width (outside measure) of molds M said openings are to receive. The drawings show a sanding-cylinder provided in its periphery with four equal mold-receiving openings D. This number of said openings is not essential, as their number may be lessened to two onincreased to six or eight, as' may be preferred, provided said openings are so arranged in relation to each other that at least one opening will be above while another will be substantially below. The .interior of said box or cylinder forms the sand-chamber.

Secured to or made with the inner and oppositely located or facing edges of staves c c are ledges or flanges d d, the upper sides of which are on a plane with the exposed edges 6 of the heads b I) of sanding-cylinder C. These flanges project into moldreceiving openings D to a distance preferably about equal to the thickness of the sides of molds M, and they serve to support the side edges of these molds to revolve its counter-shaft, or itself loosely revolve on it without imparting motion thereto.

Supported from frame A A by proper bearings are shafts s s, on which are, mounted pulleys J J. Swinging or suspended from one of the shafts s is a weighted frame, K, which frame carries pulleys J J. Said frame is weighted by weight W in such a manner that it will tend to draw the free ends of the said suspended frame at its pulleys J J downward or outward. Running over and on said pulleys J J and J J are endless bands P P, made preferably of rubber belting, with a width of about four inches, (preferably,) though they may be made of chain, "rope, or leather, as may be preferred. These endless bands are so arranged in relation to the sanding-cylinder O that the upper portions of bands P P will run downward from upper pulleys J J and around the lower side of the sanding-cylinder, while the lower portion of these bands will run downward outside the upper pulleys J J and below the lower pulleys J J and weighted. suspended or swinging pulleys J J, and be low the upper portion of the bands bearing against the lower side of the sandingcylinder. These endless bands form a supportingbed, which hasan elastic bearing against the lower portion of the periphery of the-sandingcylinder and the backs of removable molds M, when the said molds are below, as shown in Figs. 1 and 2/ They operate as an elastic mold-retaining mechanism which is adapted to hold the molds securely in place in, the respective openings D when they are below the plane of the center of the rotation of the sanding-cylinder, with the sand resting on or within said molds. They also operate to automatieally hold the molds within the sanding-cylinthe bearing-surface of said bed, and it will move in unison with the outer surface of the cylinder and the molds as they .are being revolved, without the surfaces of the cylinder and molds in contact being worn, as this elastic bed will conform with the inequalities of the surfaces of the molds and cylinder they are in contact with, and will move uniformly with those surfaces without jarring or pounding. This mold supporting mechanism or elastic bed is supported wholly from the frame, and obviates the necessity of employing other mechanism which is attached tothe sandingcylinder for holding themolds in place while they are receiving the sand.

The mannerin which my new and improved machine is operated and its parts operate for sanding molds for brick is as follows: The machine is driven by a belt or band running from band-pulley G to a'driving pulley or wheel driven by any convenient motor. The sanding-cylinder is so speeded in its revolution in relation to the speed of the brick-forming ma chine that opening D will be brought up to be at a top corner, or to its highest point at the top side of the cylinder, once at each discharge of a filled mold from'the brick-forming machine it is to sand molds for, so that a sanded mold will be carried up to be in situation for ready removal simultaneously with the discharge from the brick-molding'machine of a filled mold therefrom. To illustrate: If the brick-molding machine is run with a speed to make it discharge, say, twelve filled molds in each minute, the sanding-cylinder, when pro-' vided with four mold-receiving openings, is to be revolved with a speed of three revolutions a minute. The molds to be sanded are to be first wet within in the usual manner for causing the sand to adhere. The moldreceiving openings D, except one, are to be successively covered'by a mold, M, (placed in an inverted position,) over said openings, with their side edges resting on flanges d d. This is convenientlyaccomplished by the operator placing over opening D an inverted mold, and then revolving the sanding-cylinder in direction of arrow No. l in Fig. 2 until said opening is carried down to position of opening D when opening D will be carried to position of D, and will be covered by the second mold, and by a further revolution the first-placed mold will be carried back to position D When .these three openings D are thus closed by sand within the cylinder willbe tumbled about within the cylinder, and be cast into each mold successively as it is brought down to positions 2 and 3, and be emptied of sand successively as it is. carried to position 4, when the operator will give the mold a slight rap and re- An operator, standing at a move the same to any convenient table or other place, for its ready placement in the brickmolding machine. ing in front of the machine, facing opening D, will (as each opening-uncovered by the first operator by the removal of a mold-is carried to, position of opening D) place a mold (from the molds which have been returned emptied of molded brick) over such opening, when it will be carried progressively downward and be filled with sand, and then upturned and emptied of sand and removed by the first-mentioned operator. Thus the two operators will attend the machine-one to remove the sanded molds for their replacement in the brick-forming machine and the other to replace the molds as they are returned after the moldshave been emptied of their molded brick. The molds Another operator, stand.

will be sanded uniformly on every portion of all their sides and ends without any sand adhering to the outside surfaces of the molds and without any waste of the sand.

The sanding-cylinder herein shown and de: scribed is not herein claimed, as it is embraced in another application pending herewith.

I do not herein claim the combination of the rotary sandcontaining drum, formed with mold receiving openings, as described, the molds, and mold-retaining devices, arranged to permit the molds, after they are sanded, to be successively removed from the drum and re placed by others while the drum is continuously revolving, as this forms the subject-1natter of another application pending herewith.

Having described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a machine for sanding brick-molds, the combination, with a rotative sanding cylinder or box havingmold-receiving openings, of means for automatically receiving, retaining, and releasing for removal the molds therefrom.

2. In a machine for sanding molds for brick, the combination of a revolving sanding box or cylinder provided in its periphery with a series of mold-receiving openings, molds, and mold-retaining mechanism, arranged and operating to automatically permit the molds, after they are sanded, to be removed successively from the box or cylinder and be replaced by others while the box or cylinder is continuously revolvin 3. In a machine for sanding brick-molds, the combination of a sanding-cylinder provided with a series of mold-receiving openings and means for automaticallyand temporarily retaining the molds therein and releasing the same.

4:. In a machine for sanding molds for brick, a sanding cylinder or box provided with moldreceiving openings, having projecting flanges or ledges arranged to overlap the edges of the molds, whereby escape of sand from the cylinder is prevented.

5. A machine for sanding brick-molds, com posed of a box or cylinder provided in its periphery with a series of mold-receiving openings, mechanism adapted to hold the molds therein and automatically release the same for removal, and mechanism to continually revolve said cylinder .or box and carry said 'molds from their first position of introduction to the several other positions described, to be brought into contact with the sand within said cylinder, and subsequently to discharge the sand to the chamber-room of the cylinder, substantially as set forth.

6. In amachine for sanding brick-molds, the combination,with a revolving sanding cylinder or box formed with a series of mold-receiving openings and removable molds, of an elastic mold-supporting mechanism arranged against and capable of moving in unison with said cylinder and molds, substantially as and for the purpose set forth.

7 In a machine for sanding molds for brick, the combination, with frame A, sanding box or cylinder 0, provided with .a series of mold receiving openings, D D, and molds M M, of mechanism which acts to hold said molds in said openings only when they are relatively below the center of the rotation of the cyliir der, and to automatically release said molds for removal when they are relatively above said center, and mechanism for continuously revolving said cylinder, substantially as and for the purpose set forth.

8. The combination of the frame A, sanding box or cylinder 0, provided with a series of mold-receiving openings, D, the molds M, and the endless bands I. P, or their well-known equivalent, substantially as shown and described.

9. The combination of the frame A,sanding boX or cylinder 0, provided with mold-receivin g openings D, molds M, and the endless bands P P, and means for causing said bands to bear yieldingly against said cylinder and molds, substantially as shown and described.

10. The combination of the frame A, box or cylinder 0, having mold-receiving openings D,

mold M, endless bands P P, and weighted pulleys, substantially as shown and described.

11. The combination of the frame A, cylinden or box 0, having mold-receiving openings D and ledges d cl, the molds M, endless bands P, pulleys J and J, and weight W, substantially as shown and described.

JAMES A. BUCK.

\Vitnesses i JAMEs M. SI-IATTUOK, GHARLEs SELKIRK. 

